10 results about "Storage heater" patented technology

The embodiment of the invention provides a compressed air energy storage system and method based on goaf heat storage regulation and control. The system is applied to the technical field of compressed air energy storage and comprises a heat storage goaf module, an energy storage sub-module and an energy release sub-module. The method comprises the following steps: in a power consumption trough period, an energy storage sub-module operates to compress ambient air to a high-temperature and high-pressure state; in the power utilization peak period, the energy release sub-module operates, heat energy is transmitted to high-pressure air which is pumped out of the air storage shaft and flows through the energy storage heater, and high-temperature and high-pressure air is formed to drive the turbo expander to generate electricity. After the turbo expander completes power generation, exhausted low-temperature and low-pressure air is introduced into a multi-stage cold energy exchange pipe network buried in the goaf, and an energy closed loop is achieved. In this way, the technical problems that in the prior art, due to inherent intermittency and uncertainty of renewable energy sources, grid-connected consumption is difficult, wind and light abandoning is serious every year, and the peak-valley difference of a power grid tends to be gradually increased can be solved.

The pipe sleeve type energy storage heater comprises a pipe body and a heating plate, the inner circumferential wall of the pipe body is provided with a plurality of inner convex surfaces radially protruding towards the inner side of the pipe body and a plurality of inner concave surfaces radially protruding towards the outer side of the pipe body, the inner convex surfaces and the inner concave surfaces are both of axial extension structures, and the inner convex surfaces and the inner concave surfaces are arranged in parallel. The plurality of blades are sequentially and alternately arranged along the circumferential direction and are mutually connected; the pipe body comprises a pipe body and end pipes connected to the two ends of the pipe body, the pipe body is of a regular polygon structure, and each face of the pipe body is provided with an axially-arranged clamping groove with the two through ends. The end pipe is a circular pipe, the outer diameter of the end pipe is smaller than the inner diameter of the incircle of the pipe body, and the end pipe and the pipe body are coaxial so that a shoulder face can be formed at the joint of the end pipe and the pipe body. The number of the heating plates is consistent with that of the side faces of the pipe body, and the heating plates are inserted into the clamping grooves in a one-to-one correspondence mode. The heating efficiency is high, the medium in the pipe is uniformly heated, and the heating plate is convenient to lay, maintain and replace.

The invention relates to a system for heating a sauna or steam room, which system includes a first heater (10) for heating the air in the room (8), wherein the first heater (10) is configured with respect to its heating power to heat, by itself, the air in the room (8) to a temperature of 30-120 °C, preferably to a temperature of 50-110 °C, most preferably to a temperature of 70-100 °C, a second heater (20) for producing steam in the air of the room (8), wherein the second heater (20) includes a stone space (14) that is partially open in the room (8), which stone space (14) includes a thermal mass that is configured to be heated to a temperature of 200-700 °C, preferably 300-600 °C, in order to evaporate water dispensed into the stone space (14), or wherein the second heater (20) includes a water space for storing water, which water space is configured to be heated in order to form steam from the water stored in the water space, a temperature sensor (40) for measuring the temperature of the room (8), control means for controlling the power of the first heater (10) and of the second heater (20) as a function of a selected criterion based on measurement data of the temperature sensor (40), the first heater (10) and the second heater (20) are separate heaters that are independent of each other, and the first heater (10) is a storage heater with a storage capacity in relation to the volume of the room (8) of at least 200 Wh / m3, preferably at least 500 Wh / m3, most preferably at least 800 Wh / m3, and a heat output of at least 200 Wh / m3, preferably at least 400Wh / m3. The invention also relates to a corresponding method.

This disclosure applies to the field of thermal power energy storage, providing a scheduling method and system for coupling thermal power and thermal storage. When it is necessary to reduce the power generation of a thermal power unit, the flow rate of process steam drawn from the turbine unit of the thermal power unit is increased; the heated circulating thermal storage medium flows into an underground thermal storage unit, which includes heat exchange pipes buried in the soil. The circulating thermal storage medium is drawn from the underground thermal storage unit and transported to a heat exchanger, allowing the circulating thermal storage medium to exchange heat with the heat supply medium to heat the heat supply medium. By introducing an underground thermal storage unit coupled with buried pipes and a closed-loop system, this invention transfers the waste heat from the process steam of the turbine unit to the circulating thermal storage medium through a thermal storage heater, and then allows it to enter the underground thermal storage unit to exchange heat with the soil. Excess heat energy is stored in the underground soil over time periods, so that the regulation of power generation and the process of external heat supply are no longer intertwined.

According to the adjustable steam extraction type frequency modulation and peak regulation system and method based on the hot water storage tank, a closed circulating water loop and adjustable steam extraction coordinated heat storage and release framework is constructed, and the heat storage heater and the heat release heater are adopted to be connected with the unit steam extraction system and the hot water storage tank correspondingly; and in combination with flexible control of a two-way pump, a multi-way valve and a booster pump, thermoelectricity decoupling and rapid load adjustment are realized. The system utilizes extracted steam to heat closed circulating water for heat storage when the heat supply amount of the unit is rich, releases stored heat to increase the water supply temperature of a heat supply network when the heat supply amount is insufficient, and directly changes the extracted steam amount to participate in frequency modulation by dynamically adjusting the heat storage flow. According to the method, the pressure loss risk caused by the fact that heat supply network water is directly connected into the storage tank is avoided, the deep peak regulation capacity and the variable load rate of the unit are improved, and meanwhile the system operation efficiency and the heat supply stability are optimized through efficient heat exchange of closed circulating water and flexible distribution of steam extraction.

This invention discloses a carbon dioxide solar thermal power generation system and method equipped with phase change thermal storage, including a concentrating solar collector system, a thermal storage and heat exchange system, a CO2 power generation system, and a photovoltaic power generation system. The concentrating solar collector system includes a collector; the thermal storage and heat exchange system includes a phase change thermal storage heater, a molten salt-CO2 heat exchanger, and a molten salt heat transfer tank. The phase change thermal storage heater is connected to the molten salt heat transfer tank via the molten salt-CO2 heat exchanger. The outlet of the molten salt heat transfer tank is divided into two paths: one connected to the phase change thermal storage heater, and the other connected to the collector. The collector is also connected to the phase change thermal storage heater. The CO2 power generation system is connected to the molten salt-CO2 heat exchanger, and the photovoltaic power generation system is connected to the phase change thermal storage heater. This invention uses phase change energy storage as the energy storage system for the CO2 solar thermal power generation system, which can significantly reduce the amount of thermal storage medium used. Phase change energy storage can be achieved using an electric heater, eliminating the need for stepped phase change energy storage.

The invention discloses a heating safety temperature control method based on a living body detection model and a heat storage heater, and relates to the technical field of safety control. The method comprises the following steps: emitting detection ultrasonic waves with fixed frequency, waveform and phase to a detection area pulse; continuously receiving reflected ultrasonic waves; constructing a living body detection model for performing time slicing on the received reflected ultrasonic waves and dividing the reflected ultrasonic waves into a plurality of reflected ultrasonic wave fragments; frequency demodulation is carried out on each reflected ultrasonic wave segment, and whether demodulated waveforms conforming to the respiratory frequency range and the heartbeat frequency range can be extracted or not is judged; and if yes, continuously obtaining the distance between the heater and the living organism according to the time distribution of the plurality of reflected ultrasonic segments corresponding to the demodulated waveforms conforming to the respiratory frequency range and the heartbeat frequency range, and obtaining the current safe hot air speed of the heater according to a set temperature control rule. Living organisms are prevented from being hurt by high-speed hot air.

The invention relates to a heating system and a heating control method. The heating system comprises a heat storage heater, an instant heater, a valve group, a first temperature detector, a second temperature detector and a controller. The first port of the heat storage heater is communicated with the inlet end of the instant heater through a first pipeline. The liquid inlet control valve is selectively arranged on the liquid injection pipe in a conduction mode. And the instant heater is communicated with the outlet control valve through a second pipeline. The second port is communicated with the second pipeline through a third pipeline. The first temperature detector is communicated with the first pipeline to obtain the first fluid temperature. The second temperature detector is communicated with the liquid injection pipe to obtain the actual liquid inlet temperature. The controller is used for controlling on-off of the valve set, the input flow speed of the liquid injection pipe and the heating power of the instant heater according to the first fluid temperature, the actual liquid inlet temperature and the drink making parameters. The heating system in the embodiment is beneficial to improving the heating precision, so that the beverage making effect is improved.

The application provides a heat exchange type electric water heater and a water temperature control method of the heat exchange type electric water heater. The heat exchange type electric water heater comprises a heat exchange box, a heat exchanger, a heat storage heater, an instant heater, a reversing valve and a water mixing valve. The heat exchange box is an open box. The heat exchange type electric water heater is provided with a first water inlet and a first water outlet, and the heat exchanger is provided with a second water inlet and a second water outlet. The heat storage heater is arranged in the heat exchange box. The heat exchanger is located in the heat exchange box. The instant heater is arranged between the reversing valve and the second water inlet. The reversing valve is connected to the first water inlet, the instant heater and the water mixing valve. The water mixing valve is connected to the reversing valve, the first water outlet and the second water outlet. The heat exchange type electric water heater can improve the stability of the water outlet temperature of the heat exchange type electric water heater.

The present invention provides a phase-change heat storage heater and a method of use. The heater includes a housing, a phase-change heat storage container is suspended in the housing, and an insulation layer is filled between the phase-change heat storage container and the inner wall of the housing; a heat conduction groove is provided at the upper end of the phase-change heat storage container, a liftable heat sink is installed on the housing, and the heat sink is lifted and lowered by a lifting mechanism, and the housing is provided with a protective cover on the outer side of the heat sink; when the heater is working, the heat sink moves downward and is inserted into the heat conduction groove, thereby heating the indoor environment; when the heater is in standby mode and not working, the lower end of the heat sink is separated from the heat conduction groove. The heater of the present invention uses molten salt phase change material for heat storage and heat release. The molten salt phase change material has a large heat capacity and a relatively long heat release time. It can be used for mobile heating without an external power cord, and the heating temperature is controlled by an MCU control module.